CCrmInvoiceRestService::isAssociativeArray

static function isAssociativeArray($ary)
{
	if(!is_array($ary))
	{
		return false;
	}

	$keys = array_keys($ary);
	foreach($keys as $k)
	{
		if (!is_int($k))
		{
			return true;
		}
	}
	return false;
}